November 1999 Statewide Ranks Based upon preliminary data, November 1999 was the warmest such month since records began in 1895. Forty-six of the contiguous 48 states ranked within the warm-third portion of the historical distribution including the warmest November on record for eight states. These included Iowa, Kansas, North Dakota, Oklahoma, Oregon, South Dakota, Wisconsin, and Wyoming. Thirty-one other states had preliminary temperature rankings within their top-ten warmest on record.